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Moose/Bear Repellent aka FLAME THROWER

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Picture of Moose/Bear Repellent aka FLAME THROWER


The idea for this project was born from trying to get our campfires started with kindling and wood so wet we couldn't get them to burn with dry paper. Sure charcoal lighter would work but where's the fun in that?


Please don't be misled by the term Moose/Bear Repellent, I only used it to create more interest. It probably wouldn't deter a bear that was intent on inflicting harm. If anyone wishes to visit Alaska to enjoy the great outdoors, I would recommend some sort of bear deterrent. Be advised a big ol' can of pepper spray isn't always effective, they have even been seen licking it from the ground. Making plenty of noise or an occasional blast on a portable air horn while you're hiking will keep surprise encounters to a minimum. As for the moose, beware, they usually aren't afraid of anything and would love a chance to bully you for your snacks, or for no reason at all.    

 
Some words of caution: Be safe, have a fire extinguisher or bucket of water nearby and someone else there in case whats burning is you. Never operate indoors. You wouldn't pee up a rope or spit into the wind, it'll get ya if you do, so don't use it when the wind is blowing.
     

Materials: All materials are available at Lowes or Home Depot except the butane refills and birch plywood, which can be found at tobacco shops and craft stores respectively. Total estimated cost $50-$60 US.
 
8 in. of 1-1/2 in. type "L" copper tubing
1-1/2 in. copper end cap
1-1/4 in. copper end cap
1 in. length of 3/4 in. soft copper tubing
1/4 in. x 1-3/4 in. hitch pin
4 in. x 4 in. x 5MM extruded acrylic
24 in. x 12 in. x 1/8 in. birch plywood
1-1/4 in. length of 1/4 in. oak dowel
1-1/2 in. x 1-1/8 in. x 1/2 in. long aluminum angle
4 pcs. 1/8 in. tension pins 5/8 in. long
12 pcs. #8 x 3/4 flat head wood screws
3 pcs. #6-32 x 1/4 in. flat head machine screws
1 pc. #8-32 x 1 in. flat head machine screw
2 pcs. #6 x 1/2 in. flat head wood screws
1 pc. #8-32 x 1/4 in. flat head machine screw and lock nut
1 pc. #10-24 x 3/8 in. pan head machine screw, flat washer, lock washer and nut
pulse ignition for gas grill with wiring harness ( Lowes or Home Depot )
1 pc. AA battery
2.1 oz. can butane
1 paper clip
1 pc. 3/4 in nylon pipe cap
Titebond wood glue
super glue
a bit of solder

Tools used:

Laser cutter
Pipe cutter
Hand drill and assorted bits
Dremel with cut-off wheel and drum sander
Wire crimper
Sand paper
Scotchbrite
Propane torch
Router table
Phillips screwdriver



Below are the drawing files for the grip frame.
 
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Hi, nice instructable!.

I have one of these (http://www.alibaba.com/product-gs/200505011/Pulse_Igniter_JP_02A.html) instead of the igniter you used.
do you think it'll work?, I'm worried about the input voltage.





ps: i have the cable with the electrode and the push button switch on their own ..............
thanks in advance
flytye9 months ago
how can I get the PDF file.
Edgar1 year ago
If this is not Fun Time Stuff, I don't know what is! :D
Went to my Blog:
http://faz-voce-mesmo.blogspot.pt/2013/03/acendedor-de-churrascada-electricidade.html
dman7891 year ago
have you thought about selling these?
CONGRATULATIONS!!! you did a really well project.At this moment I haven´t got a laser cutter (isn´t a bit weird a 13 years old boy with a laser cutter?) so I cannot do it but it´s a really amazing instructable.Allso, here in spain it´s a bit difficult to find butane, but with deodorant and matches you can do a really cool flamethrower
flamethrower.png
Is butane not allowed in Spain?
No, it's just difficult to find.In Spain the lighters and all the stuff that uses butane is so cheap that you just buy a new one.
xSmok3y2 years ago
Just finished mine
mamajr962 years ago
About how much did everything cost?
xSmok3y2 years ago
what is the scale for the pdf file? I need it for my lazer cutter. Thanks!
Very nice work. Very Steam Punk looking. The copper tubing probably gives it some weight whereas I might consider using PVC. Do you think that that would be a melting hazard? Anyway, I read all the way through your Instructable and found it very thorough except I ended up becoming a bit lost with the soldered fuel chamber with the nylon end-cap. If I may be so bold as to ask, what is that chamber for again? And, do you have any photos of that chamber taken from a 3/4 view so we can get a visual perspective of it? As it stands though, I love it and it seems like a fun enough project to take on. Be safe and responsible folks. :-)
antoon2 years ago
really cool but i have no way of making it :(
creddits to the maker
Great job! I've been looking around for instructions to a flamethrower. This is really great but I might need to simplify it.
All I can say is... WOWZA!!!!
Very well thought out and I do believe it could be a formidable deterrent for lots of situations. Gob well done. I like it.
Severan_Mal2 years ago
Lol love the title and vid!
its all good until it blows up in your face...
PDRWLSN (author)  archieburden2 years ago
Blowing up is highly unlikely. The fuel can't even burn until it is discharged into the atmosphere. Also the valve on the butane cartridge is shielded from heat so the possibility of melting the valve and discharging all the fuel contents at once is eliminated.
This is amazing.........
PDRWLSN (author)  hossweightlifter2 years ago
Thank you, appreciate the comment.
Wow! That's a great instructable.
You have created a thing of beauty.

? sad
Whaat??
PDRWLSN (author)  FriendOfHumanity2 years ago
Thank you, glad you like it. Copper is going to be used in more of my projects.
Sergei-2 years ago
Hi

Thats awsome

I have some similar plans that i baught at an online book shop that use to be in australia about 15 years ago

Turns out these plans are from the information unlimited people and this book shop was selling a cd's worth full of things like this

That looks great can't wait to look more closely at it

Serg
PDRWLSN (author)  Sergei-2 years ago
Thank you.
Can you supply the website? I'd like to check it out.
Sergei- PDRWLSN2 years ago
hi

The place i got the cd from has closed down but i can give you the site that origonaly had the plans for sale but they sell them at different prices and it's full of things like kits for things not just the plans/schematics

http://www.amazing1.com

They have all sorts of cool stuff there

Serg
PDRWLSN (author)  Sergei-2 years ago

Thanks for the info, it's a cool site. Going to spend more time checking out their stuff later.
ilpug2 years ago
This is amazing, if a bit complicated for me.

If you put this in your pocket, it might be considered a concealed weapon, as this is probably extremely illegal.

Does this have a safety?
PDRWLSN (author)  ilpug2 years ago
Anything one could fit in a pocket that could cause harm to another could be considered a concealed weapon, it would depend on the intent of the one in possesion and what the one in possesion were doing at the time.

As for legality, it's legal where I live but there may be locations it may not be.

No there is no mechanical interlock, I wouldn't transport this, or my camp stove for that matter, with a butane cylinder installed.
ilpug PDRWLSN2 years ago
Yeah, true. Anyway, great design and build!
PDRWLSN (author)  ilpug2 years ago
Thank you. Happy you like it.
Perfect, bring it on zombies! im ready for ya now
theguyhere2 years ago
That amazing... Now get a bigger spray can and make a bullpup rifle :P
deobomb2 years ago
would wood work for the triger and push rods?
PDRWLSN (author)  deobomb2 years ago
I don't see why it wouldn't. I'd use birch plywood laminated to the proper thickness for strength though.
batonas2 years ago
nice design man
PDRWLSN (author)  batonas2 years ago
Thank you.
kibukun2 years ago
Hmm, Bear deterrent? like a shotgun?
PDRWLSN (author)  kibukun2 years ago
That would fit in the category of insurance protection from hostile encounters. Deterrents come in the form of noise makers, talking, singing and such. Anything you can do to keep from surprise encounters goes a long way toward preventing hostile situations. Some think that dispensing pepper spray on the ground around their campsite will deter bears from entering. It may, but don't count on it.
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